Presentation is loading. Please wait.

Presentation is loading. Please wait.

Authors: Pooria Hosseini MD MSc, Jeff Pawelek BS, Stacie Nguyen MPH, George H. Thompson MD, Suken A. Shah MD, John M. Flynn MD, John P. Dormans MD, Behrooz.

Published byMiranda Cummings Modified over 8 years ago

Similar presentations

Presentation on theme: "Authors: Pooria Hosseini MD MSc, Jeff Pawelek BS, Stacie Nguyen MPH, George H. Thompson MD, Suken A. Shah MD, John M. Flynn MD, John P. Dormans MD, Behrooz."— Presentation transcript:

1 Authors: Pooria Hosseini MD MSc, Jeff Pawelek BS, Stacie Nguyen MPH, George H. Thompson MD, Suken A. Shah MD, John M. Flynn MD, John P. Dormans MD, Behrooz A. Akbarnia MD, GSSG Rod Fracture and Lengthening Intervals in Traditional Growing Rods: Is There a Relationship? ICEOS 2015, 9TH INTERNATIONAL CONGRESS ON EARLY ONSET SCOLIOSIS (ICEOS), Boston, MA, USA

2 Pooria HosseiniNone Jeff PawelekNone Stacie NguyenNone George H. ThompsonNuSpine Medical Technologies (B,C), Lippincott (C), Orthpediatrics (B), SpineForm (B). Suken A. ShahGlobus (A), Depuy, Artex, Depuy (C), John M. FlynnBiomet (C), Wolter Kluwer Health (C). John P. DormansElsevier (C), Mosby (C), Brooke’s Publishing (C) Behrooz A. AkbarniaDepuy Spine (C), Nuvasive (A,B, C), K2M (B), Ellipse (A,B), Nocimed (A) GSSGNone Disclosures A: Stock B: Consultancy C: Royalties/Financial Support D: Grants

3 Generally, traditional GR surgery in EOS requires periodic rod lengthening every 6 months until skeletal maturity Lengthening intervals vary between patients due to many reasons including complications FEA studies have shown that shorter lengthening intervals (more frequent lengthenings) results in lower rod fracture 1. 1- Agarwal A., A. A., Jayaswal A., Goel V. (2014). "Smaller Interval Distractions May Reduce Chances of Growth Rod Breakage Without Impending Desired Spinal Growth: A Finite Element Study " Spine Deformity 2: 430-436. Introduction

4 Retrospective study of multicenter EOS database Inclusion criteria a)dual growing rod surgery b)minimum 2-year follow-up c)minimum 2 lengthenings d)Only patients with revision surgery related to rod fracture were included Only patients with revision surgery related to rod fracture were included. Methods

5 Methodology

6 Lengthening intervals a)RF: only up to the first fracture b)NRF: all intervals Demographics Construct details Radiographic parameters Data collection

7 ParameterNRFRFP value Mean pre-op age7.3 yrs5.7 yrs< 0.001 EtiologiesNM (39%)Syn (39.3%)> 0.05 Last lengthening interval prior to rod # Vs. mean interval in NRF 8.6 m9.2 m0.610 Mean pre-op major curve size 72.9°75.5°0.279 Max kyphosis51.9° 0.619 % curve correction post surgery 45.9%43.9%0.431 Rod diameter4.8 mm4.6 mm0.262 Rod typeNASSTi0.004 49.2 %38 % Results NM: Neuromascular Syn: Syndromic NA: Not applicable SS: Stainless steel Ti: titanium

8 INTERVALS (months) 1st2nd3rd4th5th6th7th8th9th10th11th NRF88.649.239.7798.1511.39.796.747.59- RF8.168.268.067.889.068.39106.466.779.3314.3 P > 0.05 Results

9 Lengthening intervals were not statistically different in RF and NRF groups. Hence, shorter lengthening intervals (more frequent lengthenings) should not benefit the traditional dual growing rods in terms of rod fracture prevention. Patients who had rod fracture were younger at the time of index surgery and had more SS rods. Conclusion

10 Lengthening intervals did not appear to be a risk factor for the incidence of the rod fracture in the traditional dual growing rods. Significance

11 MCGR cases have a wider range of lengthening intervals (1-9 m) vs. TGR cases with min of about 5 m and longer To study the real effects of lengthening intervals on the rod fracture we recommend the review of the effects of lengthening intervals on rod fracture in MCGR constructs Future studies

12 Thank you

Download ppt "Authors: Pooria Hosseini MD MSc, Jeff Pawelek BS, Stacie Nguyen MPH, George H. Thompson MD, Suken A. Shah MD, John M. Flynn MD, John P. Dormans MD, Behrooz."

Similar presentations

Surgery of Spinal Deformities Rizzoli Orthopaedic Institute Bologna, Italy Surgical options in progressive scoliosis in pediatric patients with Neurofibromatosis.

Surgery of Spinal Deformities Rizzoli Orthopaedic Institute Bologna, Italy Surgical options in progressive scoliosis in pediatric patients with Neurofibromatosis.
Fusionless Correction for Early Onset Scoliosis (EOS) Emma Orton BME 281.

Fusionless Correction for Early Onset Scoliosis (EOS) Emma Orton BME 281.
Thoracogenic Spinal Deformity: A Rare Cause of Early Onset Scoliosis International Congress on Early Onset Scoliosis November 19 & 20, 2015 A. Noelle Larson,

Thoracogenic Spinal Deformity: A Rare Cause of Early Onset Scoliosis International Congress on Early Onset Scoliosis November 19 & 20, 2015 A. Noelle Larson,
A Comparison of Patients Treated with Shilla Growing Rods for Early Onset Scoliosis 9 th International Congress on Early Onset Scoliosis November 19-20,

A Comparison of Patients Treated with Shilla Growing Rods for Early Onset Scoliosis 9 th International Congress on Early Onset Scoliosis November 19-20,
Patients without intraoperative neuromonitoring (IONM) alerts during implantation of rib based growing constructs did not sustain neurologic injury during.

Patients without intraoperative neuromonitoring (IONM) alerts during implantation of rib based growing constructs did not sustain neurologic injury during.
Growth Preserving Spinal Surgery for Scoliosis in Children with Osteogenesis Imperfecta Lawrence Karlin, MD, Amer Samdani, MD, Anna McClung, BSN, RN, Michael.

Growth Preserving Spinal Surgery for Scoliosis in Children with Osteogenesis Imperfecta Lawrence Karlin, MD, Amer Samdani, MD, Anna McClung, BSN, RN, Michael.
In the first 5 years of Treatment, the Charges for Guided Growth Constructs are 30% less than Growing Rods Lindsay M. Andras MD 1, Liam Harris BS 1, Scott.

In the first 5 years of Treatment, the Charges for Guided Growth Constructs are 30% less than Growing Rods Lindsay M. Andras MD 1, Liam Harris BS 1, Scott.
Comparison of deformity correction and complications with VEPTR and early primary posterior spinal fusion in young children with idiopathic scoliosis:

Comparison of deformity correction and complications with VEPTR and early primary posterior spinal fusion in young children with idiopathic scoliosis:
Short Term Health Related Quality of Life and Family Burden after Surgical or Casting Treatment Hiroko Matsumoto, Nicholas Feinberg, Julie Yoshimachi,

Short Term Health Related Quality of Life and Family Burden after Surgical or Casting Treatment Hiroko Matsumoto, Nicholas Feinberg, Julie Yoshimachi,
NS Harshavardhana, TJ Guillaume, MHH Noordeen, JH Perra What is Magical about Magnet driven Growth Rods (MdGR) Used for Early- onset Scoliosis (EOS)?

NS Harshavardhana, TJ Guillaume, MHH Noordeen, JH Perra What is Magical about Magnet driven Growth Rods (MdGR) Used for Early- onset Scoliosis (EOS)?
A minimum of 2 year follow up of 22 EOS patients who were treated with 2 nd generation MCGR Karsten Ridderbusch, Christian Hagemann, Ralf Stücker Childrens.

A minimum of 2 year follow up of 22 EOS patients who were treated with 2 nd generation MCGR Karsten Ridderbusch, Christian Hagemann, Ralf Stücker Childrens.
Intra-wound Vancomycin Powder Significantly Reduces the Risk of Infection in Growth-friendly Surgery John T. Smith, MD Justin Haller, MD Angela Presson,

Intra-wound Vancomycin Powder Significantly Reduces the Risk of Infection in Growth-friendly Surgery John T. Smith, MD Justin Haller, MD Angela Presson,
John T. Wilkinson m. d. , Chad E. Songy m. d. , Frances l

John T. Wilkinson m. d. , Chad E. Songy m. d. , Frances l
K O B E U N I V E R S I T Y O R T H O P E D I C S A K O B E U N I V E R S I T Y O R T H O P E D I C S A Nippon Steel Hirohata Hospital Nippon Steel Hirohata.

K O B E U N I V E R S I T Y O R T H O P E D I C S A K O B E U N I V E R S I T Y O R T H O P E D I C S A Nippon Steel Hirohata Hospital Nippon Steel Hirohata.
Authors: Pooria Hosseini MD, Jeff Pawelek BS, Gregory Mundis MD, Burt Yazsay MD, John Ferguson MD, Ilkka Helenius MD, Kenneth Cheung MD, Gokhan Demirkiran.

Authors: Pooria Hosseini MD, Jeff Pawelek BS, Gregory Mundis MD, Burt Yazsay MD, John Ferguson MD, Ilkka Helenius MD, Kenneth Cheung MD, Gokhan Demirkiran.
ICEOS 2015 Comparison of Weight Percentile Gain with Growth-Friendly Constructs in Early Onset Scoliosis Liam Harris BS1, Lindsay M Andras MD1, Paul D.

ICEOS 2015 Comparison of Weight Percentile Gain with Growth-Friendly Constructs in Early Onset Scoliosis Liam Harris BS1, Lindsay M Andras MD1, Paul D.
Incidence of Proximal junctional kyphosis with Magnetic Expansion Control Rods in early onset scoliosis P Inaparthy, JC Queruz, C Thakar, D Rolton, C Nnadi.

Incidence of Proximal junctional kyphosis with Magnetic Expansion Control Rods in early onset scoliosis P Inaparthy, JC Queruz, C Thakar, D Rolton, C Nnadi.
The Rib Construct (RC) has provided secure proximal fixation for management of patients with EOS and severe thoracic hyperkyphosis Alaa Azmi Ahmad – MD.

The Rib Construct (RC) has provided secure proximal fixation for management of patients with EOS and severe thoracic hyperkyphosis Alaa Azmi Ahmad – MD.
Final Fusion in Patients Treated with Rib Based Distraction: A Review of Peri- operative Results THE UNIVERSITY OF UTAH Department of Orthopaedic Surgery.

Final Fusion in Patients Treated with Rib Based Distraction: A Review of Peri- operative Results THE UNIVERSITY OF UTAH Department of Orthopaedic Surgery.
Burt Yaszay, MD Jeff B. Pawelek, BS John Emans, MD Patrick Cahill, MD Bo Robertson Gregory M. Mundis, MD Behrooz A. Akbarnia, MD Children’s Spine Study.

Burt Yaszay, MD Jeff B. Pawelek, BS John Emans, MD Patrick Cahill, MD Bo Robertson Gregory M. Mundis, MD Behrooz A. Akbarnia, MD Children’s Spine Study.

Similar presentations

Ads by Google